225337872 has 80 divisors (see below), whose sum is σ = 616190720. Its totient is φ = 70761600.

The previous prime is 225337837. The next prime is 225337913. The reversal of 225337872 is 278733522.

It is a self number, because there is not a number n which added to its sum of digits gives 225337872.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191847 + ... + 193017.

It is an arithmetic number, because the mean of its divisors is an integer number (7702384).

Almost surely, 2^225337872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225337872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308095360).

225337872 is an abundant number, since it is smaller than the sum of its proper divisors (390852848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225337872 is a wasteful number, since it uses less digits than its factorization.

225337872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412 (or 1406 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 225337872 is about 15011.2581751164. The cubic root of 225337872 is about 608.5244925906.

The spelling of 225337872 in words is "two hundred twenty-five million, three hundred thirty-seven thousand, eight hundred seventy-two".